Spanish Translation and Psychometric Evidence of the Nightmare Disorder Index (NDI) in Adults from the General Population
European Journal of Investigation in Health Psychology and Education October 27, 2025 Jonatan Baños-Chaparro, Rulman Andrei Franco-Jimenez, Tomás Caycho‐Rodríguez et al.
BACKGROUND: Nightmares are a type of sleep disorder characterised by vivid and distressing dreams that cause abrupt awakenings, leading to significant discomfort. In adults, recurrent nightmares can negatively impact quality of life, daytime functioning, and overall mental health. In this context, it is essential to have valid, reliable, and culturally appropriate psychological instruments that...